A251406 - OEIS

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A251406

Number of (n+1) X (4+1) 0..2 arrays with every 2 X 2 subblock summing to a prime.

6370, 179400, 5037428, 143030000, 4043668176, 114835717382, 3252989390702, 92341232223276, 2617741318438868, 74284772047478820, 2106558254168554944, 59767693725080887006, 1695146990015398218996, 48090347842888885619618

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 4 of A251410.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=2

..1..0..0..2..0....0..1..1..0..0....0..1..1..2..1....1..0..1..2..0

..2..2..1..0..0....2..2..1..0..2....1..1..2..0..0....2..0..1..1..0

..2..1..1..1..1....1..0..0..1..0....0..1..1..2..0....0..0..2..1..0